Burke B J, Washowich T L
Department of Radiology, Brooke Army Medical Center, Fort Sam Houston, Texas 78234, USA.
J Clin Ultrasound. 1998 Nov-Dec;26(9):423-6. doi: 10.1002/(sici)1097-0096(199811/12)26:9<423::aid-jcu1>3.0.co;2-p.
We wished to assess whether urodynamic changes accompanying normal pregnancy altered the pattern of ureteral jets, complicating detection of pathologic obstruction.
Ureteral jets were observed with color Doppler sonography for 5 minutes in 26 women in the second or third trimester of pregnancy and in 6 non-pregnant controls (3 men and 3 women).
A mean of 5.5 jets/minute were detected in the pregnant subjects, and the mean difference in frequency of jets between the right and left sides was 42%. Corresponding results for controls were 7.6 jets/minute and 11%, respectively. The 2 groups were significantly different with respect to jet symmetry (p < 0.02). Unilateral absence of jets was noted in 4 pregnant women but in no controls.
Because of variation in ureteral jet bilaterality and symmetry during the later stages of pregnancy, caution is recommended in the use of the technique to diagnose obstructive urolithiasis in this population.
我们希望评估正常妊娠期间伴随的尿动力学变化是否会改变输尿管喷流模式，从而使病理性梗阻的检测变得复杂。
对26名处于妊娠中晚期的女性以及6名非妊娠对照者（3名男性和3名女性），使用彩色多普勒超声观察输尿管喷流5分钟。
在妊娠受试者中平均检测到每分钟5.5次喷流，左右两侧喷流频率的平均差异为42%。对照者的相应结果分别为每分钟7.6次喷流和11%。两组在喷流对称性方面有显著差异（p < 0.02）。4名孕妇出现单侧喷流缺失，但对照者中未出现。
由于妊娠后期输尿管喷流的双侧性和对称性存在变化，因此建议在该人群中使用该技术诊断梗阻性尿路结石时要谨慎。
